Ive had almost all my bases raided, and it sucks, so to hide ur base well u should make it underground or sky, if underground then block the entrance with a stone or dirt block, depending on the surrounding, and if sky make it high up and build ur was up and mine ur way down so theres no trail, also *DONT LET ANYONE IN UR BASE* u may think u can trust them but its always safe to keep ur personal base 100% secret, lastly build past at least 500:500 or -500:-500 most likely theres nobody there.
You are giving us too much tips buddy! We are all gonna be awesome by the time your finished.
(These tips help us determine where this kid's base is. :) )